A SOC 1 audit is one of the most misunderstood engagements in the assurance world, mostly because it sounds like a smaller version of SOC 2. It is not. A SOC 1 report examines the controls at a service organization that could affect a client’s financial statements, while a SOC 2 report examines controls tied to security, availability, processing integrity, confidentiality, and privacy. Choosing the wrong one wastes budget and, worse, fails to give your customers the assurance they actually asked for.
If you run a service organization, a payroll processor, a SaaS platform, a claims administrator, or a data center, your customers and their auditors increasingly demand a SOC report before they sign or renew a contract. The question is rarely whether you need one. The question is which one, and at which level of rigor.
Quick answer: Choose a SOC 1 audit when the services you provide affect your customers’ financial reporting, such as payroll, loan servicing, or transaction processing. Choose a SOC 2 report when customers care about how you protect their data and keep your systems secure and available. A Type II report, which tests whether controls operated effectively over a period (commonly 6 to 12 months), is what most enterprise buyers and external auditors require. A Type I report only covers control design at a single point in time.
What a SOC 1 Audit Actually Covers
The SOC reporting framework comes from the American Institute of CPAs (AICPA), and SOC 1 engagements are performed under the attestation standards in SSAE No. 18. According to the AICPA’s SOC 1 guidance, a SOC 1 report is an examination of controls at a service organization that are likely to be relevant to user entities’ internal control over financial reporting (ICFR).
Read that definition carefully, because the phrase “internal control over financial reporting” is the entire point. A SOC 1 audit is not about cybersecurity in the abstract. It is about whether the way you process transactions could flow into a customer’s general ledger and ultimately their audited financial statements. If you get a number wrong, the question is whether that error could misstate someone else’s books.
That is why the primary audience for a SOC 1 report is narrow and specific: your customer (the user entity) and your customer’s financial statement auditor (the user auditor). These reports are restricted-use documents. They are written for accountants who need to decide how much they can rely on your controls when they audit your customer, not for the general public or a procurement team running a vendor checklist.
Service organizations that almost always need a SOC 1 audit include payroll providers, medical claims processors, loan and mortgage servicers, transfer agents, and trust and custody operations. Employee benefit plan recordkeepers are a classic example: the AICPA maintains a dedicated resource center for SOC 1 reports in employee benefit plan audits precisely because plan auditors lean heavily on those reports every year. If your service touches money or financial data that ends up in a client’s statements, SOC 1 is the report your client’s auditor will ask for by name.
The scope of a SOC 1 audit follows the control objectives you define, and those objectives must tie directly to the financial processes you perform for customers. A payroll processor, for example, would document objectives around the accuracy of gross-to-net calculations, the completeness of tax withholdings, and the proper authorization of payment files. Each objective is paired with the specific controls that achieve it, and the auditor forms an opinion on whether those controls meet the stated objectives.
What a SOC 2 Audit Covers Instead
SOC 2 answers a different question: can a customer trust your system to protect their data and keep running? Rather than ICFR, a SOC 2 engagement is built on the AICPA’s Trust Services Criteria. The current framework is the 2017 Trust Services Criteria with revised points of focus updated in 2022, and it organizes controls into five categories.
The five Trust Services Criteria are Security, Availability, Processing Integrity, Confidentiality, and Privacy. Security is mandatory in every SOC 2 engagement and is often called the Common Criteria. The other four are optional and selected based on the commitments you make to customers. A pure infrastructure host might add Availability, while a company handling sensitive personal data would add Confidentiality and Privacy.
This is the report most technology buyers mean when they say “send us your SOC report.” A SaaS vendor, a cloud hosting company, a managed IT provider, or a data analytics firm is far more likely to need SOC 2 than SOC 1, because their customers care about breach risk and uptime rather than financial statement accuracy. SOC 2 reports can also be shared more broadly than SOC 1 reports, though they still carry use restrictions and are intended for parties with sufficient knowledge of your systems.
A common point of confusion: many companies need both. A payroll platform, for instance, affects customers’ financial reporting (SOC 1 territory) and also stores large volumes of sensitive employee data on cloud infrastructure (SOC 2 territory). In those cases the two reports are complementary, not redundant, and they are often scoped together to share evidence and reduce audit fatigue.
Type I vs Type II: The Distinction That Matters Most
Within both SOC 1 and SOC 2, you choose between a Type I and a Type II report, and this choice usually matters more to buyers than the SOC 1 versus SOC 2 question itself.
A Type I report evaluates the description of your system and whether your controls are suitably designed as of a single specified date. It answers, “On this day, did the controls look right on paper?” It says nothing about whether those controls actually worked over time.
A Type II report goes further. It tests whether the controls operated effectively throughout a defined review period, which is commonly 6 to 12 months. The auditor gathers evidence across that window: samples of access reviews, change tickets, monitoring logs, and reconciliations. This is why a Type II report carries far more weight, and why most enterprise customers and external auditors will accept nothing less.
A reasonable path for a first-time service organization is to start with a Type I to confirm your control design, then move to a Type II covering the following period once controls have been operating long enough to test. Many mature organizations skip straight to Type II and maintain rolling annual reports with no coverage gaps, which is what sophisticated buyers expect to see year after year.
How Do You Decide, and What Does It Take to Get Ready?
Start with one question: why are your customers asking? If the request is coming from your customer’s audit team or relates to financial processing, the answer is SOC 1. If it is coming from procurement, information security, or a vendor risk team worried about data protection, the answer is SOC 2. When both groups are asking, plan for both.
Next, confirm the type. Read the contract language and security questionnaires your customers send. Phrases like “operating effectiveness,” “over a period,” or “Type 2” mean a point-in-time Type I will not satisfy them. Getting this right before you engage an auditor prevents the expensive mistake of producing a report nobody will accept.
Readiness work is where most of the value is created. Before a formal examination, a readiness assessment maps your existing controls to the relevant criteria, identifies gaps, and gives you time to remediate. This is where pairing audit expertise with practical advisory matters: our audit and assurance services team performs the examination, while our risk advisory services team helps design and strengthen the underlying controls so the examination goes smoothly the first time.
A well-run readiness phase also sets the boundaries of the engagement. It clarifies which systems, locations, and processes belong in scope, which controls map to each objective or criterion, and where you rely on subservice organizations such as a cloud provider. Settling those questions early keeps the examination focused and prevents surprises that can delay the final report when a customer is waiting on it.
Finally, build for repeatability. SOC reports are not a one-time event; customers expect a fresh report every year, with each Type II period beginning where the last one ended. Treating control evidence as an ongoing operational discipline, rather than a fire drill each renewal cycle, is what keeps your sales pipeline unblocked and your renewals on track.
Frequently Asked Questions
Can a company need both a SOC 1 and a SOC 2 report?
Yes, and it is common. An organization whose services affect customers’ financial reporting and also stores sensitive data on cloud systems often needs SOC 1 for the financial impact and SOC 2 for security and privacy. The two reports cover different control objectives and different audiences, so one does not replace the other.
Is a SOC 1 audit the same as a financial statement audit?
No. A financial statement audit gives an opinion on a company’s own financial statements. A SOC 1 audit examines a service organization’s controls that could affect its customers’ financial reporting, and the report is used by those customers and their auditors rather than expressing an opinion on the service organization’s financials.
How long does a SOC 2 Type II review period have to be?
There is no single mandated length, but the period commonly runs 6 to 12 months. First-year reports sometimes use a shorter window such as three to six months, while ongoing annual reports typically cover a full 12 months so there is no gap between consecutive periods.
Which report do most SaaS and technology vendors need?
Most technology and SaaS vendors need SOC 2, because their customers are primarily concerned with data security, system availability, and privacy rather than financial reporting controls. A SaaS company would only need SOC 1 if its software directly affects how customers record transactions in their financial statements, such as a billing or payroll engine.
